EP1488737B1 - Skin observing apparatus - Google Patents

Skin observing apparatus Download PDF

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Publication number
EP1488737B1
EP1488737B1 EP04013836A EP04013836A EP1488737B1 EP 1488737 B1 EP1488737 B1 EP 1488737B1 EP 04013836 A EP04013836 A EP 04013836A EP 04013836 A EP04013836 A EP 04013836A EP 1488737 B1 EP1488737 B1 EP 1488737B1
Authority
EP
European Patent Office
Prior art keywords
observing
skin
image pick
light
illumination system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP04013836A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1488737A1 (en
Inventor
Yasuo Shirai
Hiroshi Misawa
Tsuyoshi Kawai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Moritex Corp
Original Assignee
Moritex Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Moritex Corp filed Critical Moritex Corp
Publication of EP1488737A1 publication Critical patent/EP1488737A1/en
Application granted granted Critical
Publication of EP1488737B1 publication Critical patent/EP1488737B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
    • A61B5/442—Evaluating skin mechanical properties, e.g. elasticity, hardness, texture, wrinkle assessment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence

Definitions

  • the present invention concerns a skin observing apparatus including an image pick-up head having a view hole formed at the top end thereof, and an image pick-up device for picking-up images of a skin through the view hole in a state of bringing the top end thereof into contact with the skin, and an illumination system for irradiating an illumination light to the skin, the image pick-up device and the illumination system being provided inside the image pick-up head.
  • illumination-incorporated observing apparatus have become important tools for sales promotion since the apparatus can magnify skins at a high magnification ratio, display textures formed of fine twilled ridges running lengthwise, crosswise and slantwise, blotches caused by subcutaneous pigmentation, etc. on a monitor and enable explanation for the situations of skins to customers while presenting video images.
  • US6,122,042A describes an apparatus for photoelectrical analysis and/or identification of properties of a material object. It comprises a collection of light sources having substantially distinct wavelength envelopes and activated in a rapid sequence of distinct combinations. The apparatus displays light sources and a collection of spatially distributed light detectors.
  • DE 198 54 292 A1 discloses method for diagnosing tissue conditions and a skin-observing-apparatus for electromagnetic-radiation tissue diagnosis, comprising a measurement head including optical fibers and a dielectric probe to contact the tissue.
  • Optical signals and/or HF-signals are supplied, returning as tissue responses. They are exchanged through a path between sources and detectors. Further, in a case of observing blotches, a polarization plate located on the side of a light source and another polarization plate located on the side of the image pick-up device are situated in a cross nicol state, and an indirect reflection light from the inside of the skin is mainly picked-up while cutting the direct reflection light from the skin surface, so that blotches can be picked-up distinctly.
  • the texture as the surface condition of the skin and blotches caused by subcutaneous pigment can be observed respectively by selectively switching an illumination system providing direct reflection and an illumination system providing indirect reflection, or by changing the direction of the polarization plates disposed in one identical illumination system (refer to Japanese Patent No. 4214523 .
  • a disposable keratin sampling seal coated with an adhesive has been adhered on the surface of a skin to sample keratin and the amount of the sampled keratin has been judged by optical measurement.
  • the amount of sampling differs depending on the way of adhering the keratin sampling seal, strength of adhesion, releasing speed and way of releasing conducted by cosmetic make-up stuffs.
  • the effect of the cosmetics can not be confirmed by sampling keratin after the use of the cosmetics from an area identical with the area from which the keratin was sampled before use.
  • WO 01/34027 A1 discloses a skin-observing-apparatus according to the preamble of claim 1, wherein an illuminator ring comprises a plurality of waveguide rings for providing multispectral, multi-source transillumination of a skin lesion.
  • a filter assembly can be provided to select the appropriate wavelength to each waveguide ring.
  • the present invention intends to make it possible for observing skin textures, blotches caused from subcutaneous pigmentation, skin roughness caused from keratin abrasion, by a single unit of an image pick-up apparatus by using neither a polarization plate for blotch observation nor consumption articles such as a keratin sampling seal.
  • a skin observing apparatus including an image pick-up head having a view hole formed at the top end thereof, and an image pick-up device for picking-up images of a skin through the view hole in a state of bringing the top end thereof into contact with the skin, and an illumination system for irradiating an illumination light to the skin, the image pick-up device and the illumination system being provided inside the image pick-up head, wherein the illumination system comprises three illumination system, that is, a texture observing illumination system of irradiating a white light to the view hole along the axis of an image pick-up light, a keratin abrasion observing illumination system for irradiating a white light to the view hole from the lateral side thereof, and a subcutaneous pigment observing illumination system for irradiating a UV-light aslant to the view hole; the texture-observing illumination system comprises white light-emitting-elements arranged circularly and near the image pick-up optic
  • the images of the skin can be picked-up through the view hole by the image pick-up device.
  • a UV-light is irradiated as the illumination light by the subcutaneous pigment observing illumination system to the view hole, since the UV-light has a short wavelength, the light is transmitted through the skin and reflected at the subcutaneous area suffering from pigmentation and then entered to the image pick-up device, images for blotches or freckles caused by subcutaneous pigments can be picked-up distinctly by picking-up images of subcutaneous pigments.
  • a skin observing apparatus 1 shown in Fig. 1 to Fig. 3 includes a dome-shaped image pick-up head 3 having a view hole 2 formed at the top end thereof, in which an image pick-up device 4 for picking-up images of skins through the view hole 2 in a state of bringing the top end of the head into output with a skin and an illumination system for irradiating an illumination light to the skin are provided.
  • an image pick-up device 4 for picking-up images of skins through the view hole 2 in a state of bringing the top end of the head into output with a skin and an illumination system for irradiating an illumination light to the skin are provided.
  • images picked-up by the image pick-up device 4 can be displayed on a display unit (not illustrated).
  • the illumination system comprises a texture observing illumination system 5A for irradiating a white light to the view hole 2 along the direction of an image pick-up optical axis X, a keratin abrasion observing illumination system 5B for irradiating a white light to the view hole 2 from the lateral direction thereof, and a subcutaneous pigment observing illumination system 5C for irradiating a UV-light UV-A (at a wavelength of about 390 nm) to the view hole 2.
  • a texture observing illumination system 5A for irradiating a white light to the view hole 2 along the direction of an image pick-up optical axis X
  • a keratin abrasion observing illumination system 5B for irradiating a white light to the view hole 2 from the lateral direction thereof
  • a subcutaneous pigment observing illumination system 5C for irradiating a UV-light UV-A (at a wavelength of about 390 nm) to the view hole 2.
  • the texture observing illumination system 5A comprises high luminance white LED (white light emitting elements) 6A arranged circularly at the periphery of the image pick-up light axis X.
  • LED 6A are mounted each to a circular substrate 8 externally disposed to a lens cylinder 7 for the image pick-up device 4 such that the illumination light axis X A is substantially parallel with the image pick-up light axis X, and emission angle ⁇ A is selected in accordance with the diameter of the view hole 2 such that the illumination light covers substantially the entire area of the view hole 2.
  • the keratin abrasion observing illumination system 5B comprises high luminance white LED (white light .emitting element) 6B arranged circularly to the outside of the LED 6A of the texture observing illumination system 5A and a circular reflection mirror 9 for reflecting the illumination light and irradiating the same from the lateral direction to the view hole 2.
  • LED 6B are attached each to the circular substrate 8 such that the illumination light axis X B thereof is substantially parallel with the image pick-up light axis, and the illumination light axis X B thereof is bent by the circular reflection mirror 9.
  • the emission angle ⁇ B for the LED 6B is selected smaller in accordance with the width of the reflection mirror 9 such that the illumination light is not irradiated directly to the view hole 2 but almost all of the light is irradiated to the reflection mirror 9.
  • the subcutaneous pigment observing illumination system 5C comprises UV-light LED (UV-light emitting elements) 6C arranged circularly to the outside of the LED 6A of the texture observing illumination system 5A.
  • the UV-light LED 6C are attached each to the circular substrate 8 each being inclined such that the illumination light axes X c are collected to the center of the view hole 2, and the emission angle ⁇ c thereof is selected in accordance with the diameter of the view hole 2 such that the illumination light covers the entire area of the view hole 2.
  • a main body of the skin observing apparatus 1 has a main ON-OFF switch 10, an illumination changing switch 11 for selectively actuating each of the illumination systems 5A to 5C to emit light, and a shutter switch 12 for recording images displayed by the image pick-up device 4.
  • the skin observing apparatus 1 is used, for example, in a case of picking-up images for the skins of a customer who intends to purchase cosmetics, explaining the situation of the skins while presenting video images to the customer and, after applying make-up with selected cosmetics, picking-up skin images again and explaining the customer how the skin condition has been improved while presenting the improved images to the customer.
  • the image pick-up head 3 is brought into contact with an optional area to be checked of a face before make up, and the texture, keratin abrasion and blotches are observed at an identical area or respective optional areas while switching the illumination lights from the illumination systems 5A to 5C successively.
  • the texture observing illumination system 5A is lit, a white light is irradiated along the illumination light axis X A substantially parallel with the image pick-up light axis X through the view hole 2 to a skin, and the illumination light is directly reflected on the surface of the skin and entered to the image pick-up device 4.
  • the illumination light axis X A is substantially parallel with the image pick-up light axis X, shades due to unevenness of fine twilled ridges running lengthwise, crosswise and slantwise on the skin surface are not formed and images for ridge lines thereof can be picked-up distinctly and the texture showing the situation of the skin surface is displayed clearly. Further, since the skin images can be picked-up only by irradiation of the white light from the high luminance white diodes 6A with no effect of the ambient light, the skin images can be always picked-up under the identical condition and the skin color can be observed exactly. Then, when the shutter switch 12 is pushed, static picture images picked-up from the texture are intaken and stored in a predetermined memory area of a computer.
  • the texture observing illumination system 5A is extinguished and the keratin abrasion observing illumination system 5B is lit, in which the white light irradiated from the LED 6B at a narrow emission angle ⁇ B is reflected on the reflection mirror 9 and irradiated to the view hole 2 from the lateral direction at an angle substantially parallel with the skin surface.
  • images for protuberances of the skin are picked-up in a whity state undergoing the illumination light from the lateral direction, while the images for valleys of the skin are picked-up somberly being shaded from the illumination light.
  • the present invention can provide an excellent effect capable of observing the texture of a skin, blotches and freckles caused by subcutaneous pigment deposition, and the roughness of skin caused by keratin abrasion by a single unit of an image pick-up apparatus using neither a blotch observing polarization plate nor consumption articles such as a keratin sampling seal.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Dermatology (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
EP04013836A 2003-06-17 2004-06-12 Skin observing apparatus Expired - Fee Related EP1488737B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003171665A JP3954533B2 (ja) 2003-06-17 2003-06-17 肌観察装置
JP2003171665 2003-06-17

Publications (2)

Publication Number Publication Date
EP1488737A1 EP1488737A1 (en) 2004-12-22
EP1488737B1 true EP1488737B1 (en) 2010-04-07

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EP04013836A Expired - Fee Related EP1488737B1 (en) 2003-06-17 2004-06-12 Skin observing apparatus

Country Status (5)

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US (1) US7369692B2 (zh)
EP (1) EP1488737B1 (zh)
JP (1) JP3954533B2 (zh)
CN (1) CN100446727C (zh)
DE (1) DE602004026384D1 (zh)

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US8717428B2 (en) 2009-10-01 2014-05-06 Raytheon Company Light diffusion apparatus
US8828028B2 (en) 2009-11-03 2014-09-09 Raytheon Company Suture device and method for closing a planar opening
US9060704B2 (en) 2008-11-04 2015-06-23 Sarcos Lc Method and device for wavelength shifted imaging
US9144664B2 (en) 2009-10-01 2015-09-29 Sarcos Lc Method and apparatus for manipulating movement of a micro-catheter
US9259142B2 (en) 2008-07-30 2016-02-16 Sarcos Lc Method and device for incremental wavelength variation to analyze tissue
US10321748B2 (en) 2013-03-15 2019-06-18 Shiseido Americas Corporation Systems and methods for specifying and formulating customized topical agents
US11676157B2 (en) 2018-07-13 2023-06-13 Shiseido Company, Limited System and method for adjusting custom topical agents

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8690762B2 (en) 2008-06-18 2014-04-08 Raytheon Company Transparent endoscope head defining a focal length
US9521946B2 (en) 2008-06-18 2016-12-20 Sarcos Lc Transparent endoscope head defining a focal length
US9259142B2 (en) 2008-07-30 2016-02-16 Sarcos Lc Method and device for incremental wavelength variation to analyze tissue
US9060704B2 (en) 2008-11-04 2015-06-23 Sarcos Lc Method and device for wavelength shifted imaging
US8717428B2 (en) 2009-10-01 2014-05-06 Raytheon Company Light diffusion apparatus
US9144664B2 (en) 2009-10-01 2015-09-29 Sarcos Lc Method and apparatus for manipulating movement of a micro-catheter
US8828028B2 (en) 2009-11-03 2014-09-09 Raytheon Company Suture device and method for closing a planar opening
US10321748B2 (en) 2013-03-15 2019-06-18 Shiseido Americas Corporation Systems and methods for specifying and formulating customized topical agents
US11445803B2 (en) 2013-03-15 2022-09-20 Shiseido Company, Limited Systems and methods for specifying and formulating customized topical agents
US11676157B2 (en) 2018-07-13 2023-06-13 Shiseido Company, Limited System and method for adjusting custom topical agents

Also Published As

Publication number Publication date
CN100446727C (zh) 2008-12-31
US20040257439A1 (en) 2004-12-23
JP3954533B2 (ja) 2007-08-08
DE602004026384D1 (de) 2010-05-20
EP1488737A1 (en) 2004-12-22
US7369692B2 (en) 2008-05-06
CN1572250A (zh) 2005-02-02
JP2005006725A (ja) 2005-01-13

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